Smoke eliminator



Feb. 22, 1944. w, CHANDLER 2,342,329

SMOKE ELIMINATOR Filed Dec. 4, 1942 IN VEN TOR.

Patented Feb. 22, 1944 SMOKE ELIMINATOR Walter R. Chandler, Paducah, Ky., assignor of twelve and twenty-five one-hundredths per cent to Robert L. Burton, twelve and twentyfive one-hundredths per cent to Virgil Lee Chandler, twelve and twenty-five one-hundredths per cent to Dell A. Wallace, and twelve and twenty-five one-hundredths per cent to Walter A. Blackburn, all of Paducah, Ky.

Application December 4, 1942, Serial No. 467,881

1 Claim.

The device forming the subject matter of this application is capable of being installed in a water space boiler of any desired sort, for the purpose of eliminating to a practical extent, unconsumed matter from the products of combustion. The invention aims to supply a device of the class described which will cause air, or a mixture of air and steam to move downwardly in the fire-box, thereby promoting a circulation of the products of combustion in the fire-box. The invention aims, further, to supply novel means whereby the air and steam conduit may be adjusted longitudinally, to position a nozzle, which forms part of the conduit, properly within an enclosing tube mounted in a boiler.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawing:

Fig. 1 shows in vertical section a portion of a boiler, the device forming the subject matter of this application being installed therein;

Fig. 2 is a rear end elevation;

Fig. 3 is a longitudinal section wherein parts remain in elevation;

Fig. 4 is a transverse section of the sleeve and associated parts;

Fig. 5 is a front elevation.

The numeral I marks a boiler, for example a locomotive boiler, including a double, rear end wall 2, the arch appearing at 3 and the arch tubes at 4.

Transversely spaced sleeves 5 are mounted in the wall 2 and have a downward and inward slant. Oppositely disposed brackets 6 are located within the sleeves 5 and are secured thereto, the brackets constituting supports and guides, which extend inwardly. The brackets 6 are supplied with oppositely projecting flanges I.

The letter 0 marks a conduit, including a pipe 8 disposed within each sleeve 5, the conduit having a downward and inward slant.

Externally of the wall 2, the pipe 8 is coupled at I l to a transverse pipe 9, constituting a header.

Intermediate its ends, the header 9 is coupled at 12 to a vertical pipe [0 having an air branch l4 and, a steam branch I5, the mingled flow being governed by a valve l8 interposed in the pipe ID, the flow of air being regulated by a valve IS interposed in the branch l4, and the flow of steam through the branch l5 being controlled by a valve l'l interposed in that branch.

A distributor and supporting disk I9 is located within each sleeve 5 and is perforated at 22 for th passage of air which may enter the open, outer end of the sleeve 5. The conduit pipe 8 is threaded throughout a portion of its length, as shown at 20, to receive adjusting devices, such as nuts 2|, between which the distributor disk I9 is bound.

The conduit C includes a nozzle 23, constructed in any desired manner, and mounted on the inner end of the pipe 8. Oppositely disposed hangers 24 are secured to the nozzle 23, and terminate in hooks 25 slidably mounted on the flanges I of the guide brackets 6. The nozzles 23 are shown as having flared bores, although they might be constructed otherwise. The end wall of the nozzle 23 is shown at 21 and has a line of perforations 28, although the perforations might be arranged otherwise.

The flow of air and steam is regulated by adjusting the respective valves l6 and I1, and the combined flow is regulated by adjusting the valve l8. The mixture passes into the header 9, and thence through the conduits comprising the pipes 8 and the nozzles 23. Since the conduits have a downward and inward slant, the air and steam mixture is caused to circulate, to a considerable extent, in the fire-box of the boiler I, a thorough consuming of unburned material in the products of combustion being brought about, fouling and sooting being avoided.

It is desirable to regulate the position of the nozzle 23 with respect to the inner end of the sleeve 5. This is accomplished by adjusting the nuts 2| on the pipe 8, the distributor disk l9 being secured to the sleeve 5. During the longitudinal adjustment of the nozzle 23, the hook portions 25 of the hangers 24 on the nozzle 23 move on the flanges l of the guiding and supporting brackets 6.

Having thus described the invention, what is claimed is:

In a smoke eliminator, a boiler furnace including a rear wall and water tubes connected to the wall and located substantially in a common plane,

a sleeve extended through the wall and having its axis located substantially in a common plane with the longitudinal axes of the tubes, a perforated distributor disk fixed in the sleeve and inclined with respect to the longitudinal axis of the sleeve, a conduit extended movably through the disk and downwardly and inwardly inclined with respect to the longitudinal axis of the sleeve and with respect to the plane in which the Water.

tubes are located, a nozzle mounted on the inner end of the conduit and located at the inner" end of the sleeve, the bore of the sleeve at its inner end being markedly greater than the external diameter of the nozzle, to leave at all times an open space within the sleeve and about the nozzle, and means carried by the conduit and engaging the disk to hold the nozzle in longitudinally adjusted positions.

WALTER R. CHANDLER. 

